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| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-04-30 09:00:33 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-04-30 09:00:33 -0300 |
| commit | aad797c89903d570c17f6affc770eb98afd74e62 (patch) | |
| tree | bddefd4242b0efba1068b5260f831c2697ba4037 /drivers/vfio/pci/vfio_pci.c | |
| parent | c95789ecd5a979fd718ae09763df3fa50dd97a91 (diff) | |
| parent | c1be5a5b1b355d40e6cf79cc979eb66dafa24ad1 (diff) | |
Merge tag 'v3.9' into v4l_for_linus
Linux 3.9
* tag 'v3.9': (1099 commits)
Linux 3.9
vm: add no-mmu vm_iomap_memory() stub
efivars: only check for duplicates on the registered list
TTY: fix atime/mtime regression
aio: fix possible invalid memory access when DEBUG is enabled
parisc: use spin_lock_irqsave/spin_unlock_irqrestore for PTE updates
parisc: disable -mlong-calls compiler option for kernel modules
parisc: uaccess: fix compiler warnings caused by __put_user casting
parisc: Change kunmap macro to static inline function
parisc: Provide __ucmpdi2 to resolve undefined references in 32 bit builds.
sparc64: Fix missing put_cpu_var() in tlb_batch_add_one() when not batching.
Revert "gpio: pxa: set initcall level to module init"
efi: Check EFI revision in setup_efi_vars
x86, efi: Fix a build warning
Revert "MIPS: page.h: Provide more readable definition for PAGE_MASK."
kernel/hz.bc: ignore.
Linux 3.9-rc8
events: Protect access via task_subsys_state_check()
net: fix incorrect credentials passing
x86, microcode: Verify the family before dispatching microcode patching
...
Diffstat (limited to 'drivers/vfio/pci/vfio_pci.c')
| -rw-r--r-- | drivers/vfio/pci/vfio_pci.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c index 8189cb6a86a..7abc5c81af2 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -346,6 +346,7 @@ static long vfio_pci_ioctl(void *device_data, if (!(hdr.flags & VFIO_IRQ_SET_DATA_NONE)) { size_t size; + int max = vfio_pci_get_irq_count(vdev, hdr.index); if (hdr.flags & VFIO_IRQ_SET_DATA_BOOL) size = sizeof(uint8_t); @@ -355,7 +356,7 @@ static long vfio_pci_ioctl(void *device_data, return -EINVAL; if (hdr.argsz - minsz < hdr.count * size || - hdr.count > vfio_pci_get_irq_count(vdev, hdr.index)) + hdr.start >= max || hdr.start + hdr.count > max) return -EINVAL; data = memdup_user((void __user *)(arg + minsz), |